The Ultimate Guide To CLBO Crystal
The Ultimate Guide To CLBO Crystal
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For illustration, The existing concave OC could get replaced by a plane mirror which could mitigate the ability density around the area of M1 along with the diamond. Furthermore, working with substantial damage threshold coatings for M1 and diamond would also improve the output electricity with no damages. Then, the NIR laser for the 2nd Stokes wavelength might be large ample, together with its superior beam quality, to crank out the ultimate DUV laser at 193 nm with a superior normal electrical power.
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Due to thermal lens impact inside the good-state lasers, Should the heating management is inadequate, it is not effortless to acquire the solid-state laser by using a significant power as well as a significant beam high-quality simultaneously. Lately, with the development of the thin disk laser and single-crystal fiber (SCF) laser, a substantial-ability laser at the elemental wavelength (one μm) were understood with a good beam high quality Despite a TEM00 mode beam [4,24], which might be good candidates for the elemental of your DUV laser technology. One more applicant for the fundamental is definitely the significant-electricity fiber laser which could possibly be accomplished by coherent beam mix with M2 worth less than one.
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In the scientific and industrial programs, the beam high quality of your DUV laser is usually a vital parameter. Specifically, the beam quality with the DUV laser drastically has an effect on the laser machining final results. The beam quality of your DUV laser is set by that of the basic laser and the crystal to the frequency conversion. A short while ago, a large-ability DUV laser (>ten W) at 258 nm was claimed having a beam excellent of M2 < one.five, which was generated by FHG of a Yb:YAG laser at 1030 nm using the CLBO crystal [13]. This laser would bring on a greater laser machining final result in comparison with the past DUV lasers with larger sized M2.
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Additionally, combining the sound-condition laser with other nonlinear approach which include stimulated Raman scattering, NIR lasers could be accomplished at new wavelengths with large electricity and significant beam quality, which was examined via the evidence-of-theory experiment. This Raman laser scheme offers a brand new path to the superior-electric power DUV laser, In particular in the wavelength of 193 nm.
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The conversion effectiveness from essential NIR to DUV is from 5% to 36% based on the reported leads to Desk one. Escalating the conversion effectiveness will lessen the burden on the design and setup of the fundamental laser amplifier together with the electrical energy usage. A very good beam top quality of the elemental laser will also contribute on the expanding from the conversion efficiency and also the right ability depth of the NIR and green laser within the SHG and FHG method, respectively. The very best conversion efficiencies from NIR to eco-friendly and green to DUV laser by utilization of CLBO crystal are 70% and all over fifty%, respectively [12], which corresponds for the conversion efficiency of 35% from check here fundamental to DUV.
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